Convert 1 Part per Million to Parts per Thousand

1 ppm (Part per Million) is equal to 0.001 ppt (Parts per Thousand). To convert from Part per Million to Parts per Thousand, multiply by 0.001 or divide by 1,000.

• 1 ppm × 0.001 = 0.001 ppt
• 1 ppm ÷ 1000 = 0.001 ppt